frantically relaxing
Senior Chief Petty Officer
- Joined
- Nov 19, 2011
- Messages
- 699
Was browsing thru the "MUST HAVE technical info on Volvo's" thread, and found # 12. Troubleshooting SX/DP-S Trim System--
I thought I would post my experience with this in hopes it may help someone out.
Last summer my trim just quit working out of the blue. I got it to work a couple of times, but pretty much dead.
I first checked the electrical with a test light and found I was getting power where I was supposed to. So I pulled the trim pump assembly out of the boat, and removed the motor. Beware, as once it's removed it can fall apart in your hands, as the 2 long bolts holding it to the pump housing also hold the motor together!
Upon dis-assembly I found the brushes and themal overload points both looked like new. The points spring tension was quite tight, and there was no carbon traces on the points.
But there was plenty of carbon scoring on the commutator--
Since I was in the parking lot of the harbor with limited supplies, using my cordless drill, a safety pin and an emery board borrowed from the wife, I cleaned up the commutator...
After re-assembly I was pleasantly surprised to find the motor worked just fine, and has done ever since.
I thought I would post my experience with this in hopes it may help someone out.
Last summer my trim just quit working out of the blue. I got it to work a couple of times, but pretty much dead.
I first checked the electrical with a test light and found I was getting power where I was supposed to. So I pulled the trim pump assembly out of the boat, and removed the motor. Beware, as once it's removed it can fall apart in your hands, as the 2 long bolts holding it to the pump housing also hold the motor together!
Upon dis-assembly I found the brushes and themal overload points both looked like new. The points spring tension was quite tight, and there was no carbon traces on the points.
But there was plenty of carbon scoring on the commutator--
Since I was in the parking lot of the harbor with limited supplies, using my cordless drill, a safety pin and an emery board borrowed from the wife, I cleaned up the commutator...
After re-assembly I was pleasantly surprised to find the motor worked just fine, and has done ever since.